Maintenance
5583−1/A2
Winterthur Gas & Diesel Ltd.
2/ 11
1.3.1 One Actuator is Defective− 0%
F.O delivery
1) Do a check of the control signals from
the ECS and the electrical cables. If
necessary, replace the electrical ca-
bles.
2) Disconnect the electrical cable from the
actuator.
3) Make sure that the toothed rack (3)
moves freely (see Fig. 1).
4) Move the toothed rack (3) to the 0% fu-
el position.
5) Install two distance pieces (6, tool
94555) to the toothed rack (3) on the
fuel pump (1) that has the defective ac-
tuator.
6) Replace the defective actuator as soon
as possible (see the Maintenance Man-
ual, 5801−1 Regulating Linkage).
1.3.2 One Actuator is Defective− 50%
or 100% F.O delivery
1) If different power outputs are neces-
sary, lock the actuator in other positions
(50% fuel, or 100% fuel).
2) Remove the six screws from the cover
(2) then remove the cover.
3) For 50% fuel, do steps a) and step b):
a) Move the toothed rack (3) to the
50% fuel position.
b) Install one distance piece (6) on
each end of the toothed rack (3).
4) For 100% fuel, do step a) and step b):
a) Move the toothed rack to the
100% fuel position.
b) Install two distance pieces (6) on
the toothed rack.
Note: Fuel pressure control through the
PCV must be prevented if possi-
ble.
Fig. 1: Fuel Pump Actuator
2020
Faults in High Pressure Fuel System
1
2
I
WCH00832
3
4
I
5
3
WCH00832
6
WCH02318
100%
50%
FUEL
0%
WCH02318
3
Actuator shown in
50% fuel position
94555